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Wireless Communications and Mobile Computing
Volume 2017, Article ID 1354273, 12 pages
Research Article

Layout-Independent Wireless Facility Constructing and Scheduling for Data Center Networks

Nanjing Telecommunication Technology Research Institute, Nanjing 210007, China

Correspondence should be addressed to Xianglin Wei; moc.361@nilgnaix_iew

Received 27 June 2017; Accepted 27 August 2017; Published 8 October 2017

Academic Editor: Dharma P. Agrawal

Copyright © 2017 Xianglin Wei and Qin Sun. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The control packets in the data center networks (DCNs) have to contest with the data packets although they are usually much shorter in size and much more important in network management. Moreover, the uneven distribution of the packets may create potential traffic hotspots in the DCN which could degrade network performance drastically. To bridge these gaps, a layout-independent constructing algorithm and a scheduling method are put forward towards layout-independent wireless facility in data centers. First of all, a conflict aware spanning tree algorithm is developed to construct the wireless facility network (WFN). Secondly, a scheduling method which contains three steps, route calculation, traffic estimation, and flow scheduling, is presented. In the route calculation step, a route set between each node pair is calculated in advance for later usage. The scheduler estimates the traffic loads on the links on a regular basis in the traffic estimation step. Then, arrived data and control flows are scheduled according to multiple policies based on given route sets and scheduling objectives in the flow scheduling step. Finally, a series of experiments have been conducted on NS3 based on two typical data center layouts. Experimental results in both scenarios have validated our proposal’ effectiveness.